# Tone Generator vs Decibel Meter

The clearest difference is update cadence: Decibel Meter at every 4 weeks against Tone Generator's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Tone Generator sells 1 one-off in-app purchase and Decibel Meter sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Tone Generator ships an update every 4 months, Decibel Meter every 4 weeks. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Tone Generator | Decibel Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (139 ratings)](https://appshunter.io/ios/app/tone-generator-frequency-app/id1561496708/reviews)** | — |
| Number of ratings | **139** | — |
| Positive reviews | 84.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 14 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tevfik Yucek](https://appshunter.io/developer/566982862) | [Nico Schroeder](https://appshunter.io/developer/432790036) |

## What reviewers say

### Tone Generator

[App page](https://appshunter.io/ios/app/tone-generator-frequency-app/id1561496708)

Generate various audio tones like sine, square, sawtooth, and triangle waves across a wide frequency range. Adjust frequencies by swiping and utilize built-in features for fun hearing tests or to clean your device's speaker.

**Highlights:** Sine, square, sawtooth, triangle wave generation, Adjustable frequency via swipe, Built-in hearing test sweep, Speaker cleaning function, Large frequency range

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $2.99 | one-time |


### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-noise-analyzer/id6747433637)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Premium | $4.99 | per month |
| One Week Premium | $5.99 | per 7 days |
| One Year Premium | $19.99 | per year |
| Lifetime Premium | $29.99 | one-time |


## Frequently asked questions

### Is Tone Generator free?

Tone Generator is free to download, with in-app purchases available.

### Is Decibel Meter free?

Decibel Meter is free to download, with in-app purchases available.

### Do Tone Generator or Decibel Meter have ads?

Both Tone Generator and Decibel Meter show ads.

### Which is updated more often, Tone Generator or Decibel Meter?

Tone Generator ships an update every 4 months, and Decibel Meter every 4 weeks. Most recently, Tone Generator was updated on November 1, 2026 and Decibel Meter on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*